The Proximity Effect and the UV Background at z 4

Details The Proximity Effect and the UV Background at z 4 The Proximity Effect and the UV Background at z 4

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.7225s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #72.25; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We present measurements of the mean UV background from the proximity
effect in the spectra of 12 z 4 quasars observed with the Magellan
telescope. We compare the measured background to models based on the
contribution from quasars and star-forming galaxies to determine which
sources dominate the background at this epoch.

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